Suspending folders



June 9, 1959 A.'G. LUNDGREN SUSPENDING FOLDERS 2.5heets-Shegt 1 Filed July 29, 1954 |||||mw ||RMv 4 I I I I I I 1 l I II E ll I uw i ,6 H1 H June 9, 1959 A G, LUNDGREN 2,889,832

SQSPENDING FOLDERS Filed July 29, 1954 2 Sheets-Sheet 2 Aim #442 201;

Pw, JGWJK/ZMEQJ r 2,889,832 Patented June '9,"19 i9 SUSPENDING FOLDERS Axel G. Lundgren, Norrkoping, Sweden Application July 29, 1954, Serial No. 446,615

1 Claim. (Cl. 129--16.7)

In order to make folders it is already known to connect the two edges of two folders by a hanging bar having slits or openings for inserting flaps on the folder. However, the bar in question has the disadvantage that the papers nearest to the sides of the folder easily get caught by the bar, a disadvantage which it has been tried to eliminate by providing the material of the folder with embossed portions or the like.

This disadvantage is eliminated by the present invention. The invention relates to hanging folders carried by bars, each bar being provided with longitudinal grooves or openings, each of said grooves being arranged for inserting therein a folder flap at the hanging-up of the folder. The invention is substantially characterized in that the bar is placed between the edges of two folders and the bar is no obstacle when papers are to be taken out of the folder, and that the folding line between the flap and the side of the folder is bow-shaped. Other characteristics of the invention will be seen from the following description.

Examples of some embodiments of the invention are shown in the accompanying drawings.

Fig. 1 illustrates in plan view the front side of the bar with the folder and viewed in section in Fig. 2 along the line IIII in Fig. 1, and in Fig. 3 along the line IIIIII in Fig. 1. Fig. 4 shows the edge of the folder seen from above.

The bar as shown in Figs. 1-3 may be made of a rectangular thin sheet-iron plate or some other suitable material, the two long sides being folded forming a front portion a and a rear portion b, the portion between them forming a roof 0, see Fig. 1. The bar has the form of an inverted U and the roof c is preferably sloping. At the ends the portions a and b may be provided in a well known manner with a hook it and a recess i, Fig. l, for suspending and retaining the bar in the vertical box. In each portion a and b there is arranged, preferably through punching, a longitudinal, narrow rectilinear slot d, some distance from the lower edge portions a and b, an edge d for carrying the folder e, f being obtained on which the edge of the folder rests, when the flap g has been entirely inserted through the opening d. The flap of the rear wall e of the folder is carried by the front portion a of the bar, and the flap of the front Wall f of the folder is carried by the rear portion b of the bar ahead in the vertical box. Thus each bar carries two folder edges belonging to two different folders. The lower part a of the front portion a and the lower part b of the rear portion b are offset inwardly towards each other as indicated in Fig. 3 everywhere along the bar except at the ends as indicated in Fig. 2, thus reducing the distance between the front and rear portions a and b throughout most of the length of the bar which thus tends to hold the folded edges or flaps g in place once they have been inserted in the elongated opening d. The ends d of the opening are higher than the rest of the opening, so that the upper edge'd is farther away from the lower edge d than the rest of the edge, an arrangement which facilitates the insertion of the flap of the folder and also the application of the title holder, not shown.

It is very important that the bending line k for the flap g of the folder is convexly curved and the fold so shaped that the folder in the suspended vertical position with the folded flap forms a bow at the edge of the folder so that the latter is seen from the front, from above, from behind or from the end.

The radius of the convexly curved fold line k and the opening d are in a certain relationship to each other. The radius of the bending line k is adapted to the height of the opening in such a manner that the highest located point, see Fig. 3, will be located higher than the opening itself, the lower edge of the opening being the base line. That is to say, the distance between an imaginary base line connecting the opposite ends of the convex fold line k on the folder and the point of maximum height on the convex fold line at the middle part thereof is greater than the distance between the upper and lower edges d and d of the rectilinear slot d. The folded flap g of the folder is inserted into the opening d from the outside of the portion a and assumes a position parallel with the side of the folder. The edge of the folder rests on the lower edge of the opening at the ends.

Owing to the convexly curved shape of the fold line of the folder the central portion of the fold line of the folder is forced in the longitudinal direction automatically towards the inside of the front and rear portions of the bar, and at the loading of the folder the central por tion is brought to rest against the inside of the said portions above the opening. Thus, the folder is detachably attached, but all the same effectively attached to the suspending bar, and can be subjected to a great strain without loosening.

For detaching the folder the side of the folder is provided with holes I at the top opposite the folded flap, so that the fingers can catch conveniently the side of the folder and draw out the flap through the opening.

The invention is not restricted to the embodiment shown but can be varied within the scope of the inventive idea.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

In a suspending file of the type wherein a plurality of elongated bars having hook portions at the ends thereof are engageable with horizontal parallel spaced rails for supporting said bars, and each said bar is arranged to support the upper edge portions of two adjacent suspending folders, the improvement wherein each said bar is of generally inverted U-shape, the depending sides of said bar being each provided with a longitudinally extending rectilinear slot, each said slot receiving a folded flap portion of an adjacent suspending folder, said folded flap portions of said adjacent folders being inserted in the corresponding slots from the outside face of the corresponding side of said bar, and the fold line of said flap portion extending along a convexly curved path from one end thereof to the other, the distance between a base line connecting said opposite ends of said convexly curved fold line and the highest point on said line at the central part of said flap portion being greater than the distance between the upper and lower 3 edges of said slot, the opposite ends of said folded flap portion resting upon the lower edge of said slot and the central part of said fold line being located above the upper edge of said slot and between the depending sides of said U-shaped bar.

References Cited in the file of this patent UNITED STATES PATENTS 1,2 03, O42

4 Williamson Ian. 19, 1937 Guichard Dec. 30, 1952 FOREIGN PATENTS Great Britain Oct. 9, 1946 France Apr. 11, 1951 France Apr. 9, 1952 France Apr. 29, 1953 

